Khi có mặt chất chống oxy hóa, nó sẽ bị khử thành DPPH-H có màu vàng. Độ giảm độ hấp thu ở bước sóng 517nm có ý nghĩa như là khả năng khử gốc DPPH của chất chống oxy hóa
In the presence of antioxidants, it will reduced the DPPH-H are yellow. Absorption decreases in wavelength 517nm mean is likely to eliminate the root of the DPPH antioxidant
When antioxidants are present, it will be reduced to DPPH-H is yellow. Reduced level of absorption at a wavelength of 517nm mean reducing the ability of radicals DPPH antioxidant
Antioxidants when it will be reduced to DPPH - H is yellow. Decreased absorbance at wavelength 517nm implies purification capacity of antioxidant DPPH origin